In all my implementations I had problem that XR (5.x.x, 6.0.x) would NOT announce routes learned from BGP ipv4 unicast neighbor to BGP IPv4 labeled-unicast neighbor.
Something like this:
https://learningnetwork.cisco.com/thread/117644
But now I am seeing that BGP indeed is announcing routes learned from plain BGP to LU neighbors on XR 6.1.3.
I need to understand, is it a bug, or is it intended behavior. The only evidence about it I found is this: (mentioning 6.2.x under 5.3 documentation)
http://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r5-3/routing/configuration/guide/b_routing_cg53xasr9k/b_routing_cg53xasr9k_chapter_010.html
Neighbor Address Family Combinations
For default VRF, starting from Cisco IOS XR Software Release 6.2.x, both IPv4 Unicast and IPv4 Labeled-unicast address families are supported under the same neighbor.
For non-default VRF, both IPv4 Unicast and IPv4 Labeled-unicast address families are not supported under the same neighbor. However, the configuration is accepted on the Cisco ASR 9000 Series Router with the following error:
bgp[1051]: %ROUTING-BGP-4-INCOMPATIBLE_AFI : IPv4 Unicast and IPv4 Labeled-unicast Address families t
Can You please help to clarify?
